Cock.



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u APPLICATION FILED FEBJS. 1909. 974,027. Patented Oct. 25, 1910.

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D. CRAIG.

COCK.

K l APPLIGATION FILED H343, 1909.` v 974,027. Patented 0013.25, 1910.

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al, l a2] 69al mi UNITED sTATEs PATENT oEEIcE.

DAVID CRAIG, OF MELROSE, MASSACHUSETTS.

COCK.

T o all whom t may concern.'

Be it known that I, DAVID CRAIG, a citizen of the United States, andresident of Melrose, in the county of Middlesex and State ofMassachusetts, have invented new and useful Improvements in Cocks, ofwhich 'the following is a specification.

This invention relates to cocks and consists in the improvementshereinafter fully described and specifically pointed out in the claims.

lIn the accompanying drawings which illustrate certain embodiments of myinvention,-Figure l is a side elevation of a cock embodying my inventionin one form; Fig. 2 is a sectional view of the cock shown in Fig. l;Fig. 3 is a side view of a modified form of an operating lever and itsassociated parts; Fig` l is a side vievvr of another modification of anoperating lever and its associated parts; and Fig. 5 is an end view ofthe parts shown in Fig. 4.

Referring to the drawings, A represents the outer casing, having theinlet port a, the outlet port a and the vertical branch a2. A strainera3 may be provided if desired. Independent of the outer casing is avalve casing B, preferably of generally cylindrical form adapted tobe'inserted in the outer casing through the end of branch a2. The valvecasing B comprises a valve chamber 6 located between the inlet andoutlet ports j of the outer casing, a discharge chamber 6 and a cap 62adapted to engage and close the end of branch a2. 'Ihe valve chamber 6is provided with inlet openings 63, an outlet opening 6*, and a valveseat 65. The valve 6G is mounted on valve stem 67, and is normally urgedtoward its closed position'by coil spring 6g which abuts at one endagainst the under side of valve 6G and at its other end against theperforated abutment 69, screwed into the' bottom of the valve chamber,which abutment also serves as a guide for the lower end of the valvestem.

The discharge chamber 6 is provided with outlet ports 61 whichcommunicate with the outlet port a of the outer casing through the spacebetween the valve casing and the outer casing. The valve stem 67 isreduced in diameter as shown at 611 so as not too much to obstruct theoutlet opening 64 when the valve is opened.

The lower end of the valve casing is ex- Speccation of Letters Patent. i

Application filed February 13, 1909.

Patented Oct. 25, 1910.

Serial No. 477,697.

packing 614 is inserted, the stuffing box being closed by nut 615.

With the foregoing construction, should it be desired to gain access tothe valve or valve seat or any of their associated parts for the purposeof cleaning or repairing them, all that needs to be done is to removethe inner valve casing B which carries the valve, the valve seat, thevalve operating spring, etc., all of which are separable from the outercasing A as a unit. The outer casing A is then an empty shell and itsinterior is also readily accessible for cleaning since it unobstructedby the valve seat which usually forms a part of such outer casing.

C is the operating lever or handle, preferably made hollow and having arod o suitably secured therein. The valve stem 67 projects through anvaperture o in the under side -of lever C and pivotally engages rod c. Atthe end of lever C is a downwardly extending projection herein shown asa hook c2, which extends around the periphery of the disk-likeprojection c3 which is fast upon the valve casing and engages the underside thereof. Thus the lever C may be turned or swung angular'ly withrelation to the casing, and in any angular position the projection c2will engage the under side of disk o3, the point of engagementconstituting the fulcrum of the lever when the same is pressed downwardto move the valve stem or rod 67 endwise to open the valve. y

In the'modilication shown in Fig. 3, a second projection c4, oppositeprojection c2, is provided engaging the under side of disk 03. Vith thisconstruction the valve may be opened either by pressing the lever Cdownward or lifting it upward, the point of engagement betweenprojection or hook c'l and disk c3 constituting the fulcrum of the leverwhen the latter is lifted upward, and the operation being the same nomatter in what angular' position with relation to the Caslng the levermay be.

In the modification shown in Figs. t and 5 I have shown means wherebythe valve will be opened by pressing it downward, or b v lifting itupward, or by swinging it angularly with relation to the casing, so thatno matter whether the operator swings the handle in a horizontal planeor in a vertical plane, he will succeed in opening the cock. Thismeans-consists of the same device as shown in Fig. 3 to respond tomovement of the lever in a vertical plane, and of cams ci' on the underside of disk c3, upon which the hooks 2 and 0^* ride when the lever isswung laterally causing 'the valve rod f to be moved endwise, preciselyas though the lever had been pressed down or lifted up instead of beingswung angularly in a horizontal plane. The cams c5 may be provided ifdesired with dwell surfaces o at their highest points, to engage andhold projections c2 and 0fL and prevent them from riding down the camsurfaces again under the influence of spring b3.

The strainer a3 is of any suitable material such as wire fabric shapedin a dome-like or thimble-like form, the lower end being open andfitting over a boss d on the end of the plug D. Thus the strainerextends across and conforms substantially to the shape of the ductthrough the fitting or casing A. The plug D is screwed into t-he casingA at the bottom of the elbow or bend of the casing where solid particlescarried into the casing would by gravity most naturally tend to lodge.`When it is desired to clean or replace the strainer or to clean t-hebend of casing A, all that is necessary to do is to unscrew the plug Dfrom the casing and withdraw the plug together with the strainer whichis carried thereby.

I claim:

1. A cock comprising a valve casing having therein a valve seat andvalve, a rod to operate said valve movable endwise and projectingthrough said valve casing, a projection upon said casing, an operatinglever engaging said rod adapted to move the same endwise, and aprojection upon said lever extending downward and engaging the underside of the projection on the casing, the'point of engagement betweensaid projections constituting the fulcrum of said lever.

2. A cock comprising a valve casing having therein a valve seat andvalve, a rod to operate said valve movable endwise and projectingthrough said valve casing, a flange upon said casing, an operating leverengaging said rod adapted to move the same endwise and also to be swungangularly with relation to said casing, and a projection upon said leverextending downward and engaging the under side of said iiange, the pointof engagement between said projection and said flange constituting afulcrum for said lever in any angular position of said lever.

3. A cock comprising a valve casing having therein a valve seat andvalve, a rod to operate said valve movable endwise and projectingthrough Said valve casing, a disklike flange upon said casing, anoperating lever engaging said rod adapted to move the same endwise andalso to be swung angularly with relation to said casing, and a pair ofopposed hooks upon said lever each extending around the edge of saidiange at opposite sides thereofl and engaging the under side of theflange, whereby the valve will be opened either by pressing the levertoward or away from the casing.

4. A cock comprising` a valve casing having therein a valve seat andvalve, a rod movable endwise to operate said valve, an operating leverengaging said rod and adapted to be swung in planes both parallel withand transverse of said rod, and means whereby movement of said lever inany of said planes will operate said valve through Said rod.

A cock comprising a valve casing having therein a valve seat and valve,an operating lever connected with said valve adapted to be swung in twoor more planes with relation to said casing, and means whereby movementof said lever in any of its planes of movement will operate said valve.

6. A cock comprising a valve casing having therein a valve seat andvalve, a rod to operate said valve movable endwise and proj ectingthrough said easing, a disk-like flange upon said casing, an operatinglever engaging said rod adapted to move the same endwise, said leveradapted to be swung in two or more planes with relation to said casing,a cam upon the under side of said flange, and a projection upon saidlever extending downward and engaging the under side of said fiange,whereby movement of said lever in any of its planes of movement willoperate said valve.

7. A cock comprising a valve casing having therein a valve seat andvalve, a rod to operate said valve movable endwise and projectingthrough said casing, a disk-like flange upon said casing, an operatinglever engaging said rod adapted to move the same endwise, said leveradapted to be swung in two or more planes with relation to said casing,a pair of oppositely disposed cams upon the under side of said flange,and a pair of oppositely disposed projections upon said lever eachextending downward and engaging the under side of said flange atopposite sides.

8; A cock comprising a valve casing having therein a valve seat andvalve, a rod to operate said valve movable endwise and projectingthrough said casing, a disk-like flange upon said casing, an operatinglever engaging said rod adapted to move the same endwise, said leveradapted to be swung in two or more planes with relation to saidcasing, acam upon the under side of said flange, and a projection upon said leverextending downward and engaging the under side of said tlange, wherebymovement of said lever in any of its planes of movement will operatesaid valve, said cam having a dwell surface at its top adapted to holdsaid projection.

9. A cock comprising an outer casing havsaid branch and to be securedtherein between said inlet and outlet ports, said valve casingcomprising a valve chamber having therein a valve seat and valve, adischarge chamber provided with outlet ports, and a cap adapted toengage and close the outer end of said branch, a valve stem extendingthrough said discharge chamber, and an operating lever at the end ofsaid valve casing engaging said valve stem.

Signed by me at Boston, Massachusetts, this 5th day of February, 1909.

DAVID CRAIG.

vVitnesses CHARLES D. VVOODBERRY, ROBERT CUSHMAN.

